Hi @csaba
I will raise the issue of the same description being copied from an existing invoice to a new one - I’m not sure what the expected behaviour is here, but I will check it nonetheless.
The notes won’t update for existing entries, but generally will take the first line of the invoice when it’s first produced. This topic may be of interest: Notes in Charts of accounts and invoices
[Edit]
The notes do seem to retain the information from the original. I’ve logged this for review as this should reflect the copy on it’s initial save.